//item.info.skin.shp
$(document).on("price_calculate", "#sit_tot_price", function(e, total) {
 
        $(".sum_section .sit_tot_price").empty().html("<span>총 금액 </span><strong>"+number_format(String(total))+"</strong> 원");
 
    });
 
//js/shop.js
// 가격계산
function price_calculate()
{
    var it_price = parseInt($("input#it_price").val());
 
    if(isNaN(it_price))
        return;
 
    var $el_prc = $("input.io_price");
    var $el_qty = $("input[name^=ct_qty]");
    var $el_type = $("input[name^=io_type]");
    var price, type, qty, total = 0;
 
    $el_prc.each(function(index) {
        price = parseInt($(this).val());
        qty = parseInt($el_qty.eq(index).val());
        type = $el_type.eq(index).val();
 
        if(type == "0") { // 선택옵션
            total += (it_price + price) * qty;
        } else { // 추가옵션
            total += price * qty;
        }
    });
 
    $("#sit_tot_price").empty().html("<span>총 금액 :</span><strong>"+number_format(String(total))+"</strong> 원");
 
    $("#sit_tot_price").trigger("price_calculate", [total]);
}